Toggle bolt



May 12, 1931. c. c. TOMKlNSON TOGGLE BOLT Filed March 10, 1927 5Sheets-Sheet 1 BY d1 #4:

ATT

y l931- c. c. TOMKINSON 1,805,319

TOGGLE BOLT Filed March 10, 1927 3 Sheets-Sheet 2 INVENTOR [hr/e;(FM/149M021 ATTORNE 5 y 1931- V c. c. TOMKINSON 1,805,319

TOGGLE BOLT Filed March 10, 1927 3 Sheets-Sheet 5 INVENTOR [hr/e; Cfi/v/rmawz BY MM M1 /fiflM/ ATTOR Ys Patented May 12, 1931 NEW JERSEY ESC. TOIVIKINSUIE, F PLAINFIELD, NERV JERSEY, ASSZGNOR, BY MESNE ASSIGN-"3$,"l"0 J. EDWARD OGDEN COMPANY, 0F HEY? YORK, 31'. Y., A CORPORATIONOF TOGGLE BOLT Application filed I-Earch 10, 1327. Serial No. 17%,130.

This invention relates to toggle bolts, such as are use" for securingarticles to walls or ceilings of brick, stone or cementitious materialnot adapted to directly recei e threaded member.

This invention has for its salient object to provide a toggle bolt thatis simple and practical in construction, comprises a minimum number or"parts and is eilicient in operation.

Another object of the invention is to provide a toggle bolt having awing and nut so constructed and arranged as to form strong anchoragecapable of sustaining relatively heavy loads.

Further objects of the invention will appear from the followingspecification talren in connection with the drawings, which form a partof this application, and in which rig. 1 is an elevation of one form 01togbolt constructed in accordance with the invention, the wings beinspread or swung later .lly to operative position;

i 2 is an elevation taken at (Io I is a view similar to F1 e vings infolded position; i an elevation taken right angles is a top plan view ofthe structure wn in Fig.

a view similar to o htly different enibodi Fig. 1, but showent of theinis a view taken at right angles to ave s 8 is a view similar to Fi 6,but showe wings in folded position;

9 is a view taken at right angles to (IQ Fzjilq ic+ H- Us 0069. was moop plan iew of the structure Fig. is a top plan view of the structureshown in Fig. 11

Fig. 16 is a view similar to Fig. 1, but showing further embodiment ofthe invention;

Fig. 17 is a view taken at right angles to 18 is a View similar to Fig.16, but showing the wing disposed in a position parallel to the bolt;

19 is a view taken at right angles to Fig. 18;

F ig. 20 is a top plan view of the structure shown in Fig. 16;

Fig. 21 is a view similar to Fig. 1, but showing another embodiment orthe invention;

Fig. 22 is view partly in section taken at right angles to 21;

is a view similar to Fig. 21, but

ng the wings folded;

Fi 2i is a view taken at right angles to F 23 and partly in section;

we in Fig. 21;

'. 26 is a perspective view showing one of .1 in the form of theinvention in inclusive view similar to Fig. 1, but illusa furtherembodiment of the inveni ig. is a top plan view of the structure op planview of the structure r- O 29 is a sectional elevation of the struc tureshown in Fig. 27;

Fig. 30 is view similar to Fig. 1, but show ing another embodim nt ofthe invention;

Fl 31 is a top plan view of the structure shown in Fig.

F 82 is an elevational view similar to Fig. 1, but showing anotherembodiment of the invention;

33 is an elevational view taken at right angles to Fig. 32;

as is a view similar to Fig. 32, but showing the wings folded;

Fig. 35 is a view inelcvation taken at right angles to Fig. 34;

36 is a top plan view of the structure shown in Fig. 32;

Fig. 3'? is an elevational View partly in section showing anotherembodiment of the invention; and

Fig. 38 is a top plan view of the structure shown in Fig. 37.

The invention briefly described consists of a to e bolt comprising vinsupporting mem. 1. which in some einljiodiments of the invention takesthe form of a saddle or nut and in other embodiments of the inventioi'lconsists of the bolt itself and a wing r wings carried by the wingsupporting member. Each wing is formed of resilient material and thewing and supporting memb r are so relacly c: stru 4 and arranged that aforce nature of the material will 1 a direction to cause the wing toirdly or laterally to open position. Particular attention is called tothe fact that no s ing or other equivalent elements are re rod since theresiliency of the wing itself tends to swing the wing to open position.Thus the number of parts is kept down to a minimum. Further details ofthe invention will appear from the following description.

Figs. 1 250 5 inclusive In this form of the invention the toggleboltcomprises a saddle member l0 having a cent al threaded opening d1adapted to receive the bolt 42. The saddle member has dependin g1 4:3and i l, each lug having a pair of openin s 45 and 46, the openings 45and 4:6 in the two ugs being disposed opposite each other and inalinement.

Each wing consists of a U-shaped member 50 formed of resilient materialand having legs 51 and 52, the ends of the legs as shown at 53 and 54being bent laterally and extend through the openings 45 and 46, thusform ing pivots or trunnions for the wings.

From the showing in Figs. 1 to 5, it will be noted that the portions ofthe legs adjacent the laterally bentends 53 and 5-1- are curvedoutwardly and downwardly as shown at Since the wings are formed ofresilient material, the legs 51 and 52 tend to spread apart and becauseof their curvature when they ar folded dmvnwardly to the position shownin 3 and l, the inwardly curved portions 57 of the legs are contractedor moved toward each other. hen the wings are released, the legs tend.to spread apart and because of the curvature and the bearing of the legsagainst contacting portions of the saddle, the wings are automaticallyswung; upwardly or spread to open position. It will be noted that thesaddle 40 i arched or convex in shape. This construction is particularlyadvantageous since it is necessary for the proper operation of a togglebolt to have a loose fit between the thread of the bolt and the saddle.lVhen the wings engage the wall through which the bolt extends, furtherturning of the bolt in the saddle will cause the saddle to bend, due toits ductility, and to tightly grip the bolt.

Figs. 6 to 10 inclusive In this form of the invention the saddle memberor toggle head l0 has depending lugs 60 and G1 which shown. in Fig. 7converge slightly or are inclined slightly toward each other.

Each wing 62 has legs 63 and 64 which are substantially parallel whenthe wing is spread to open position. However, when the wing is foldedagainst the bolt 42, the depending lugs 60 and 61 function as cams tocontract the legs 63 and (54 of the wing as shown in Fig. 9. It will benoted, however, that when the wings are contracted by the cams or aredisposed in folded position, they do not extend far enough between thecams to prevent their automatically springing outwardly when they arereleased.

If desired, in order to prevent rotation of the wings when the bolt isbeing rotated through the saddle, one of the wings may have a weight 65secured to its outer end. This weight will tend to hold the wing 63 onwhich the weightis mounted in a position below the bolt, thus preventingthe rotation of the wing and saddle member as the bolt rotated.

Figs. 11 to 15 inclusive The emhodin'ient of the invention lll1lF tratedin 11 to 15 inclusive incorporates features of the invention shown inthe forms illustrated in 1 to 5 inclusive and the forms illustrated in 6to 10 inclusi c. From the showing in Fig. 15 it will be evident that theless of the wings are curved in a manner similar to the legs of thewings hown in Fig. 5; that is to say, the legs and 71 are curvedinwardly at 72 and laterally at 73.

From the showing in Figs. 12 and 1-2: will be evident that the dependinglugs and 7 6 carried by the saddle 77 are inclined toward each other orconverge in a manner similar to the lugs 60 and 61 in Figs. 7 and 9.These lugs, therefore, function as cams.

In Fig. 14 the legs 70 and 71 are shown as contracted at their upperends, this contraction being due both to the curvature of the portions72 of the less and to the cam action. of the lugs and 76.

One of the wings has its outer end bent inwardly as shown at '58, thusproviding excess material at the outer end of this wine which functionsto wc' ht the wing to prevent the rotationv of the saddle member and winwhen the bolt is rotated.

Figs. 16 to 20 inclusive In this embodiment of the invention there isshown a s1 ngle wing comprising a U-shaped member 80 having legs 81 and82. Each leg has a tab or lug 83 punched out of the material thereofforming an opening 8 1. The

wing is pivoted on lugs 85 and 86 formed on a nut 87 which is threadedon the bolt 88. The lugs 85 and 86 have their outer ends beveled asshown at 90, the planes of the outer ends of the lugs converging.

1t will be noted that the tabs 83 are inclined to the legs 81 and 82 atangles corresponding with the bevels or planes of the outer ends of thelugs 85 and 86. Thus the wing will tend to take the position shown inFigs. 16 and 20 unless held in a position parallel to the nut as shownin Figs. 18 and 19.

111 Fig. 19 it will be noted that the legs 81 and 82 are spreadlaterally when the wing is disposed parallel to the bolt. The forcewhich tends to contract the legs to the position shown in Fig. 20 willalso tend to rotate the wing so as to bring the bevelled ends of thelugs 85 and 86 into contact with the inclined surfaces of the tabs 83.

Figs. 21 to 26 inclusive in this form of the invention each of the lugsand 96 depending from the saddle member or nut 97 has formed thereinpreferably by punching out the material in the lugs, a pair of pockets98 and 99. Each wing 100 has legs 191 and 102 provided with laterallybent ends 103 having bevelled end surfaces 104 adapted to seat in thepockets 98 or 99. he pockets as shown particularly in 22 have innerbevelled or angular surfaces 105. iVhen the wings are spread to openposition, the bevelled ends 10% seat in the pockets against the inclinedsurfaces 105. However, when the wings are folded, the ends ride out ofthe pockets to the position shown in Fig. 2e and the upper ends of thelegs are contracted. Upon their release, however, the force which tendsto spread the legs will cause the wings to swing outwardly to openposition.

Figs. .97 to 2.9 inclusie'e In this form of the invention the wings arecarried directly by the bolt instead of by a nut or saddle member. Thebolt 109 as shown in Figs. 27 and 29 has a pair of laterally extendinglugs 110 and 11 which are elliptical or oval in section.

The wings 11 and 113 are pivoted on the lugs 110 and 111, each winghaving its end portion 115 bent around to form an eye or substantiallyclosed loop. il hen the wings are swung'downwardly against the bolt, theeyes or loops will be partially opened but the resiliency of thematerial thereof will tend to cause the wing to swing outwardly to openposition.

Figs. 30 and 31 I this form of the invention as in the embodiment shownin Figs. to 29, the

wings are carried directly by the bolt. The upper end of the bolt- 121is flattened and is provided with a pair of openings 122 and 123.

The wings 1% and 125 are provided with U-shaped central portions 126'and 12'. which extend through and are pivoted in the openings 122 and123. Each wing also has a pair of legs 128 and 129 bent baclzwardly onthe U-shaped portion, one of the legs of each wing having an eye 130 andthe other leg having a hook 131 formed on the end thereof. The legs ofthe wings are disposed or. opposite sides of the flattened portion 120of the nut and the hoolt on the leg of one wing extends through the eyeof the corresponding leg of the other wing, as clearly illustrated inFigs. 30 and 31.

l fhen the wings are folded downwardly against the bolt, the legs ofeach wing are pressed against the ll-shaped portion thereof due to thei1 tel-locking of the ends of the legs of the two rings. The resiliencyof the wings, however, tends to force the legs away from the thehapedportions thereof and spread the wings to the position shown in Fig. 30or to open position.

Figs. to 36 iii-chaise In this enihodiinent of the invention, the saddleraeinher has pivoted thereto a pair of wings 136 and 13'4". Each winghas pivot lugs 138 and 139 extending laterally therefrom and also hasformed thereon lugs 140 and 1-11.

Each wing is formed of resilient material and in this case, is formed offlat stoc I rather than round wire stock as in the precedingenibodinients. From the showing in 38, it will be seen that the lugs 140and 1 11 e::- tend outwardly and as the wings are folded downwardly tothe position shown in Figs. 3% and 35, these extensions or lugs bearagainst the 1% and 1&5 of the depend ing portions 1&6 and 1 1" formed onthe saddle member 135. This causes the legs of the wings to contract asshown in 35 and the tension caused thereby, tends to swing the wingsoutwardly.

Figs. 37 and 38 1n this form of the invention, the wings 159 anc 151 aresimilar in construction to the wings 136 and 13] shown in Fig. 36 butdiifer therefrom in that no pivot lugs corresponding to the lugs 138 and139 are provided. In Figs. 3'? and 38, each wing has a pair of lugs 152and 153 formed at the end thereof and having under surfaces 15% adaptedto rest on inwardly extending lugs 156 and 157 formed on the saddlemember 158. The engagement of the lugs 152 and 153 with the projections156 and 15'? limits the swinging movement of the wings to open position.

'When the wings and 151 are folded, the

till) lugs 152 and 153 bear against ti and 160 of the do Jondin aortl isaddle member.

(this causes the ing embodiments oi it wiil be clear IlODi variousembodiments o with the wing supports wine's to antoinatieaii so i, I ,7spread to pen pos i w 1 1 m n, s 4 n ieaseo. 41115 ioiin oi coin 1 .7 N1 l ah vnnecessar 1 van is such springs which act between the v s wingsupports sat'idie am there-tore, embodies a minimnn'i no iilthonghcertain c the invention have bee and desoribed, it wi' lnrention iscanal) 1 i 1, .L changes ill the 'angement oii the vmay be made with anthe spirit or scope of the invention, as expressea in the followingclaims.

l l hat I claim is: 1. I; toggle head ior use with a toggle l o t andeoiiorismg a wi supporting memb r i, said wine ano p rtions so and a cathereby and adapted swing relative thereto, said being formed or imember hainie' wing will be contr ed iid \vi 1 expan i open position.

2. A toggle head for use with a toggle bolt and comprising a wir iddlemember and a vi g c1 rried tilSl'GlJ and adapted to swing relatiiethereto, said wing being formed of resilient mat all, said i Tag andmember having interengaging portions so hoped and arnnged t 'iatportions of the wing will be con tracted when the wing is f l l o andwill or;- pand when the wing spreads to open position.

3. A toggle head for use with a toggle bolt and comprising a wln set Imember a l tale g c in a wlng 02 1'1 u. thereby and adapted to swingrelative thereto, said wiiig being formed otl' resilient material. andhavii contractible and expansible portions, said Yin g and momher laving interengaging portions so shaped and arranged that sa' 1 resilientportions of the ing will be ten ioncd when the wing is moved in onedirection to the wing saddle member and will is relieved of tension whenthe wn moves in the other d1- rection.

at. A toggle head for nse with a toggle bolt and coinpi'is' g zsupporting member, and a rssocia ed with said memving pivot-ally 11 her,sa1d wing being forned of resilient material and comprising a pair '2legs under stress teinlingto force said legs apart and the i to openposition, said wing and snppoi sing member h ving cam means coacting toforce the n" g legs aoart and cause the wing to swing open position asthe legs spread ap a rt.

"or use with a toggle bolt adec n'ieinber, a wing on .i. tog e h and con comprising 1 g reslient material anl pii'oi' den n'iember, said l podand arranged legs aid in a 1 ion when the wing :onneotion between openposr ion when the (3, A toggle at toggl boit an comprising a supportingmember, a wing pivotail associated with in. El 1 d formed of resilientmat-esa and member having portions coasting to effect the swinging ofthe wing m en position under force derived from the -1 q head :tor usewith a toggle bolt ZlllC (5011191 lglllg 1 'i 1.) associated with saidmember and mi, said member and and ar 'anged that the l being so sl t 11position nndec ension due to the r silienc v oi the material thereof.

1 toggl iead for a toggle belt in sing a saddle member, and a wing pi ithereon and comprising legs formec inent material and normally undertenending to spread said legs apart and the to open position, said wingand saddle ienieer having coacting cam means so relatively shaped andarranged that the tension tending to force the wing logs apart willcause the wing to swing to open position.

. ii to l "ad for use with a toggle bolt a] comprisin a cam shaped addleineinb and a 4 d thereon and coinpi 111g legs formed of resilientmaterial and norn all nncer stress by said cam tending to sell 1 rt whenthe wing is to 'i 1d saddle member be- N L and arranged tiat lf theiorce endir the legs will cause th wing to em 'to open position.

10. 1L toggle head r01 me with a toggle l' oi and comprising wii'igsupporting memher and a wing 02 .ied the-*eby and adapted to swingrelative thereto, said win being formed of resilient mat ial, said wingand me nber having interengaging portions so shaped and arranged thatportions of the wing will be sprung in one direction when the wing isfolded and will spring in the opposite direction when the wing moves inthe other direction.

11. In combination, a toggle bolt comprislit) a member having a cam, anelementpivassociated with said member and enby sale cam and having aresilient t ortion held all times under stress thereby, said camcoacting with said resilient por tion to swing said element on its pivotand being raped and arranged to guide said portion from a position oflesser stress to a position of greater stress as the element is swungthereby relative to the member, and coacting means on said meml er andelement for limiting the pivotal movement of the element when theresilient portion thereof reaches the position of lesser stress.

12. In combination, a member having cams, a toggle bolt comprising anelement pivotally associated with said member and engaged by said camsand having resilient portions held under stress thereby, said cams beingshaped and arranges to guide said portions from a position of greaterstress to a position oi lesser stress as the element is swung relativeto the member, and coacting means on said member and element forlimiting the pivotal movement or" the elemen when the resilient portionthereof is disposed in the position of lesser stress.

13. In combination, a toggle bolt comprisg a pair of members pivotallyconnected together, one of said members comprising a pair of portionsadapted to be held under stress by the other member, said other memberhaving a cam surface adapted to cause relative swinging movement of onemember relative to the other in a manner to lessen tie stress betweenthe portions, said members having portions adapted to coact and formstop to limit further relative pivotal movement in one direction whenthe stressed portions reach a position of lesser stress.

14. In combination, a toggle bolt comprising a pair of members pivotallyconnected together, one of said members comprising a pair of resilientlyconnected elements normally tending to spread apart, the other memberhaving cam like portions engaging said elements and adapted to forcesaid elements toward each other when one member is swung on its pivotrelative to the other member and coacting means on said members forlimiting the pivotal movement or" one member relative to the othermember when said elements are spread.

15. A toggle bolt structure comprising a bolt, and a U-shaped resilientwing pivotally associated therewith, and cams coacting with said wing toswing the wing on its pivot axis.

16. A toggle bolt structure comprising a saddle having cams formedthereon and resilient wings pivoted on said saddle and having portionsengaging said cams and coact ing therewith in a manner whereby the wingswill be swung on their pivots.

17. A toggle bolt structure comprising a saddle having depending lugsprovided with cams thereon and wings formed of resilient materialpivoted on said lugs and having portions engaging said cams, said camsbeing constructed d arranged to swing said t: on the"; pivots.

18. in combination, a toggle bolt comprispair of pivotally connectedmembers, member having a cam and the other member having a resilientportion coacting therewith ant at all times held under stress thereoy,said cam being constructed and aranged to guide said portion from aposition of lesser stress to a position of greater stress as the memberhaving the resilient portion is swung relative to the other member.

19. A toggle head for use with a toggle bolt and comprising a supportingmember and wing carried thereby and adapted to swing relative thereto,said wing being formed of resilient material, and cam means actingbetween the win supporting member d the resilient wing and opposed tothe resi ency of the wing to swlng the wing from folded to openposition.

20. A toggle head for use with a toggle bolt and comprising a threadedmember and wing mounted to swing on said member, said wing havingresilient portions movable toward and away from each other, and meanscoact-ing with said portions and opposed to the resiliency of saidportions to swing the wing to open position.

21. A togle head for use with a toggle bolt and camprising a threadeomember and a wing mounted to swing on said member,

aid wing having resilient portions movable oward and away from eachother, and cam 382L118 coacting with said portions and opposed to theresiliency of said portions to swing the wing to open position.

22. A toggle head for use with a toggle bolt and comprising a threadedmember and a wing mounted to swing on said member, said wing comprisingresilient legs, and coacting means between said legs and threaded memberutilizing the force derived from the resiliency of the legs to swing thewing to open position.

23. A toggle head for use with a toggle bolt and comprising a wingsaddle member and awing carried thereby and adapted to swing relativethereto, said wing being formed of resilient material, and cam meansacting between the wing and member to place the wing under tension asthe wing is folded, the tension acting to spread the wing to openposition upon release thereof.

2st. A toggle head for use with a toggle bolt and comprising asupporting member and a wing pivotally associated therewith and formedof resilient material, and cam means coacting between said member andwing to place the wing under tension and effect the movement of the wingto open position under force derived from the wing tension.

25. A toggle head adapted for use with a toggle bolt and comprising athreaded supporting member, a wing pivotally associated with said memberand formed of resilient material said ring and member having cam actingportions coacting to effect the swinging of the wing to open positionunder force derived from the resiliency oi": the wing.

26. A toggle head for use with a toggle bolt and comprising a saddlemember, and a wing pivoted thereon and comprising legs formed oiresilient material and normally under stress tending to spread said legsapart, said wing legs and saddle member having cam means actingtherebetween tending to spread the legs and cause the wing to swing toopen position.

27. A toggle bolt head for use with a toggle bolt and comprising anarched saddle member, and wings pivoted thereon to swing from folded toopen position relative thereto, the cross section of the saddleintermediate the pivots of the wing being substantially arcuate.

28. A toggle bolt head for use with a toggle bolt and comprising anarched saddle member having depending lugs formed thereon,

- and wings pivoted in said lugs and adapted to swing outwardly, thecross section of the saddle intermediate the pivots of the Wing beingsubstantially arcuate, the under surface of the saddle forming a stop tolimit the movement of the wings to open position.

In witness whereof, I have hereunto set my hand this 2nd day of l'darch,1927.

CHARLES C. TOMKINSON.

